Means for inflating rubber tires.



No. 827,926. v PATENTED AUG. 7, 1906.

. A. G..LAVERTINE & J. E. MONELLAN.

MEANS FOR INPLATING RUBBER TIRES.

APPLICATION FILED OG'I. l0. 1905.

UNITED sTArEs iAlrENT OFFICE.

ALFONSO GEORGE LAVERTINE AND JAMES EDWARD MQNELLAN, OE-

JOHANNESBURG, TRANsvAAL. x

MEIANS FORllNFLATlN'G RUBBER TIRES# To a/ZZ whom it may concern.-

B'e it known that we, ALFONSO GEORGE LAvERTINE and JAMES EDWARDMONELLAN,l subjects of the King of Great Britain, residing atJohannesburg, Transvaal, have invented certain new and usefulImprovements in Means for Inating Rubber Tires, of which the followingis@ a specification.

This invention relates to a device applicable for iniiating the rubberor other similar tires of bicycles, tricycles, motor cars, or otherdescri tions 'of vehicles fitted with pneumatic or i atable tires. l

It has reference to that kind of apparatus in which a cartridgecontaining airor gas under pressure is employed, which air or gas isreleased and conducted to the tire to be in- Hated.

The obj ect ofthe present im rovements is to simplify the constructionoft edevice and 'render it more eicient in operation and convenient inuse.

By the present improvements the air or gas 4is`permitted to escapefromor pass out of the cartridge directly to the tire, and only so much.of the air or gas is permitted to esca e from the cartridge asisnecessary to, in ate the tire, the remainder being retained for futureuse inside the cartridge. By this means the possibility of leakage isminimized. Further, the cartridge is not destroyed 'by the operation ofreleasing the air or gas, so that it if desired, berefilled from time totime.

may, he invention willuiow be described in detail by aid of theaccompanying drawing, rep` resenting the device in sectional elevation.

In the drawing, A designates a cylindrical,

I or other suitably-shaped casin which casing at one extremity is s apedto orrn the tubular extension a.' `Through .the extension a is formed ahole a', communic'atin at the. one

end with the interior of the cylin er or casing v Iableltires.

A and at the other end opemng to the exterior. The extension a,is'constructed with a plurality of annularprojections a?, formingshoulders or abutments which, serve to retain in position thereon therubber or other flexiwhich serves for conducting the flexible tube orpipe B is preferably itted with a union for connecting it tothe valveorf dinarily'provided on pneumatic or like Ainflat- '.PatentedAug. 7,190,6,

port or passa e a communicates. Arranged formed round the top ofthe'recess b, is a ring or washer C of rubber or Aother suitableresilient material, and inside said ring or washer C and resting on theannular projection b is a spiral metal spring c. Inside the cylindricalcasing A is placed the cartridge or holder for the compressed air orgas. Itis shaped externally to fit said casing-that is to say, iffthecasing is made cylindrical internally the cartridge is also madecylindrical for the greater portion of its length. At one end it isreduced or constructed with a neck cl.- In the neck d is constructed arecess d', which communicates with the interior of the cartrid e D. Inthis recess' d is located the valve The valve E is constructed with acartrid e, an arran ed' round the stem e inside tghe neck d of thecartridge is apackin -ring or washer e of rubber orothersuitabile-material. The end of the cartridgel) isI turned over inthe form of arim or Iiange d to retain thepacking-ring or washer ein therecess d3 and atthe saine time to serve as a guide for the valve-stem e.In the stem e of the valve is formed a lon 'tudinal groove e, and acrossthe outer. en of the stem e /is formed a transverse groove e3. The valveE is held on its seat on the rubber ring or washer e by the pressure ofthe com ressed air or gas. The other end of the cylindrical casing A isconstructed with an external or cover F. In the cap' or cover F isarrange which is pivoted at one extremity f 'on a pin fl, iXed to thecap F. To the lever f inside'the cap or ,cover F is pivoted a concavepiece f B, which isshaped to fit over the end of a lever f,

a slot f, formed in the cap opposite the pgn or ivotfl, and is shaped toren er it'ca a le of ein easil moved to force the cartri ge D forwardinsi e the casing A to release the ai? or as.

Inside the casing A at thebo'ttom v withthe annular shoulder e*.abuttinglthe on the ann ar projection or' shoulder b',

is formed a cylindrical recess b, withwhich lthe stem e Whichdprojectsbeyondthe end of the screw-thread a3, and over it is' screwed a cal thecartridgeD. The lever 1projects through 9 5 IOC A and los v spiralspring c and-the rubber or 4other rey silient ring C.

' the end of the cylin concave piece f3 engages the end of the car- Eis, limited by tridgc D and the lever f takes up a position Ain theouter end of the slot f4 in thevcap or cover F. The cap F is screweddown suffi'- vciently far to cause the cartridge to be brought to itsseating on the resilient ring or washer C. The parts may be kept inthese positions until it is desired .to bring the appliance into use,whereupon the depression of4 thelleverfforces the concave piece f 3against the end of the cartridge D and depresses the cartridge againstthe rubber ring or washer C and spiral metal spring c and by causing theouter end of the valve'fstem e 'to come into contact with the bottom ofthe recess b forcesthe valve E off its seat on the rubber or otherresilient ring e" and allows the air to pass from the cartridge D andrecess d round the valve E to the groove e2 and from the latter into thebottom of the recess b, whence itpasses by the transverse groovee3 tothe port or passage c', formed through the extensione, to the pi e ortube-B, along which it is conducted to t iiated. compresses the rubberring C against the internal walls of the c'asin A and against theshoulder e, formed roun the neck of the cartridge, and so prevents anyof the com-v ressed air or gas -escaping from therecess b between thecartridge D and casing A.` The .movement of the cartridge D over the"valve the annular projection or shoulder e5, formin the inner end of therecess d; but-it is o to permit the air or y necessary for the car,tridge D to `move'a short distance, so that the valve E leaves its seaton the rubber ring e as to' pass from the carftridge D'through t e valveE to the tire.

- an' or gas inside the cartridge kee chambe When the tire vhas beeninflated, by releasin the' lever the spiral ring c, aided by theresilient ri or washer C, vforces the cartridge D upwar into its normalposition against the concave piece f3, and the pressure of the the valveE 'on its seat onthe rubber orot er resilient ring or washer e', and s oprevents the escape of any of the air or gas when the lever hasbeenreleased.

. i 1 What we claim as our invention, and 'dell sire to protect byLetters Batent, is- 6o for holding compressed or ga, said car' l.` Inmeans for inliatingtires, a cartridge being constructed to rovi e avalver-V and with an ann ar projection at the bottom of said chamber, avalve located in said'chamber for which valve the projec;

F is now screwed over;

e valve ofthe tire to be in-v The depression of the cartridge D .ing

tion, a cartridge containing com ressed airl or gas and constructed toprovi e a valvechamber at one end thereof and with an anf nularprojection at the bottom ofsai'd chamber to form a stop for the valve, avalve located in said chamber constructed with aY stem extending throughthe cartrid e, a

groove in said stem and a resilient ac gring or Washer in the cartridgewhic serves as a seating for the valve, substantially as described.

3'. In means for inflating tires, in combination,a casing having achamber in the inner l I end thereof, a resilient ring in said casinground said chamber, a cartridge containing cornressed rair'or gas formedwith a neck Whic projects into the chamber in the b ottom of thecasing', said cartridge being constructed with a chamber in the neckportion,

a valve located in said chamber and a resilient packing-ring on whichsaid valve is seated, the valve being constructed with a stem whichprojectsrbeyond the end of the car-4 tridge and is adaptedto engage thebottom of the chamber in the casing to prevent movement of the valvewhen the cartridge is' pressed into the casing, and means for presslngthe cartridge into the casing and over the va ve to release the air orgas, substantially as described.

4. In means for iniiating tires, in combination, a casing constructedwith a recess in the' inner end thereof and with a passage commuloonicating-With said recess, means for conducta l lng the air or gas fromsaid passage 'to the tire to be inflate a resilient ring inthe casinground the recess, a cartridge containing com' pressed a1r orgas-constructed with a ne'ck or shoulder which is seated on theresilientring Whenthe cartridge is laced in thecasing,

said cartridge having rmed in the neck a valve-chamber andan annularprojection at g the bottom of said chamber,a valve and are.-

silient ring in said chamber, said ring forming a seating for the valve,the valve being constructed with a stem in which is formed a groovealong which thecompressed air or gas may escape to the recess in .thecasing, and means for forcing the cartridge into the cas- A to open thevalve, substantially as detro 5. ln means for inlating tires, incombination, a casing, a cartridge ing, a valve ttedin saidcartridgewhieh is kept closed by the internal vpressure of. thecompressed air or gas, means for preventing the escape of the alr orvgasbetwcen the cartridge and casing, means for conducting-thecompressed airor gas from' the casin to the tire to -be inflated, andmeans for hol the ocated in said cassvalve While permitting thecartridge to be pressed over 1t to release the air or as from thecartridge, substantially as descri ed.

6. In means for inllating tires, incombination, a casing constructedwith an extension through Which a hole is formed to provide an outletfor the air or as, a recess in the inner end of said casing, a eXibletube for conducting the air or gas from the extension to the tire to beinated, a resilient ring located in the casing round the recess and aspiral spring located in said resilient ring, a remova le and renewablecartrid e contalning arr -or gas under ressure, sai cartridge beinconstructed With an annular shoulder seate u on the resilient ring andspiral spring and with a valve-chamber' and annular projection, anannular projection forming a stop, a valve located in said chamber and aresillent -ring Which forms a seating for the valve and upon Which it isforced by the -pressure of the air or as in the cartridge, -a cap orcover screWe over the end of the casing, a lever pivoted in said cap,and a piece pivoted to said lever which engages the endof the cartridgeand serves for depressing it in the casing to force it'over the valveWhen the stem of the valve engages the bottomof the recess in the casingtoalloW, the compressed air'or gas to esca e from the cartridge to saidrecess, substantia ly as described.

In Witness whereof We witnesses. v

Witnesses CHAs. OVENDALE, R. OVENDALE.

have hereuntoset l our hands in the presence of two subscribing-

